Imagine being disfellowshipped and losing touch with your family and being marked for destruction at Armageddon because you unrepentantly celebrate Christ's birth on a particular day even if it's the wrong day. There is no excuse for creating and enforcing the commands of men. Watchtower religion is absolutely vain going beyond what is written and claiming moral superiority to others who love and serve Jesus Christ.
They do this because they have no fellowship with, nor do they know God's Son. Yes they know some things about Jesus, but they do not know Him. They never communicate with Him. There is something wrong when someone says they know someone but never have spoken to them. They "know" and have a "relationship" with Jesus Christ in the same way as they know and have a relationship with the apostle James or Peter.
Imagine, they cannot even say:
"Thank you Jesus for giving up your glory in heaven and taking on human flesh for our salvation!"
"Thank you Jesus for dying on Calvary for my sins; for taking my punishment!"
"I love you Jesus!"